<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
<style>
html {
    font-size: 10px;
}
span {
    font-size: 1.6rem;
}
div {
    font-size: 1rem;
    width: 10rem;
    height: 10rem;
}
</style>
</head>
<body>
    <span>字体能够渲染正确</span>
    <div>宽高渲染则时以最小12px还是10px为准？</div>
</body>
</html>